Since being drafted into service in 1971, it has racked up a record 45 accidents, with 393 deaths.
It has a chequered safety record, including 47 accidents that resulted in 668 deaths.

Rate the textual similarity of these two sentences on a scale from 0 to 5, where 0 is "no meaning overlap" and 5 is "means the same thing".

Choose your answer from: +0. +1. +2. +3. +4. +5.
1